Resize, crop & rotate
Resize by pixels or percentage, crop with free or fixed aspect ratios, rotate 90°/180° and flip horizontally or vertically.
Image Tools
Image Resizer
Resize, crop, compress, convert, rotate, and bulk-process images — all directly in your browser. No uploads, no accounts, no limits. Supports PNG, JPG, WEBP, and GIF with Instagram, YouTube, and Twitter presets built in.
Compress & convert
Reduce file size with quality control and convert between PNG, JPG, WEBP, and GIF — all with instant preview.
Bulk processing
Upload multiple images and resize, convert, or compress all at once. Download individually or as a batch.
Start here
Upload once — resize, crop, compress & convert in one flow
Each action replaces your working image, so you can chain them. Download anytime.
1Upload2Edit3Download
Upload an image to begin
Click or drag a file here. PNG, JPG, WEBP, and GIF are supported.
Dimensions
Resize with precision
Set exact pixels, scale by percentage, or start from a preset.
How to resize an image online
Step 1
Upload your image
Click the upload zone or drag and drop any PNG, JPG, WEBP, or GIF image. For bulk processing switch to the Bulk tab and select multiple files.
Step 2
Choose an action
Switch tabs to Resize, Crop, Compress, Convert, or Rotate & Flip. Set your options — dimensions, aspect ratio, quality, or output format.
Step 3
Download the result
Click the action button to process your image in the browser. A preview and file size is shown before you download.
FAQ
Is my image uploaded to a server?
No. All processing happens locally in your browser using the Canvas API and WebAssembly. Your images never leave your device.
What formats are supported?
You can upload PNG, JPG, WEBP, and GIF. The Convert tab lets you export to PNG, JPG, WEBP, or GIF.
Does the resizer maintain aspect ratio?
Yes — when resizing by pixels there is a lock icon between width and height. When it's locked, changing one dimension automatically updates the other to maintain the original ratio.
What is the best format for web images?
WEBP is generally the best format for web — it produces 25–35% smaller files than PNG or JPG at the same visual quality, and is supported in all modern browsers.
Can I process multiple images at once?
Yes. Use the Bulk tab to upload multiple images and apply the same resize, convert, or compress action to all of them at once. You can then download each file individually or all at once.
Is there a file size limit?
There is no hard limit — it depends on your device's available memory. Very large images (above 20MP) may take a few seconds to process.